Free usb software for mac

The FGIO_USB board is a general purpose Digital Input and Digital Output 16+16 channel managed by a Microchip 18F4550 microcontroller.

The board uses different bus technogies for handling electronic communication with on board device.

FGIO_USB use I2C for communicate with on board 256Kb EEPROM, SPI for communicate with the MCP23S17 chip (is a Microchip 16 I/O Expander) and for communicate with 128 x 128 Graphic LCD Color Display (Nokia 6100).

Libusbs aim is to create a library that can be used by user level applications to access USB devices regardless of the operating system.

Enhancements
- Bug fixes
- Darwin backend

Apple USB DDK is a development software package that gives you some of the tools that you need to write your own USB drivers.

USB-TCP Bridge is a tool that "bridges" communications between a Palm handheld connected with a USB cradle and a TCP/IP socket. It can be used, for example, with the GDB debugger (which normally connects to the Palm OS Emulator on TCP/IP port 2000) to debug on a Palm handheld instead of debugging on the Palm OS emulator. It can also be used to connect the Unix-based pilot-link synchronization tools to a Palm handheld on Mac OS X.
The software can also be redistributed with predefined settings. As an example, "AvantGo USB Sync" is a repackaging of USB-TCP Bridge with built-in AvantGo synchronization for Mac OS X.
Enhancements:
- New UI with predefined selections in the pop-up menu, and a separate field for custom TCP port editing
- The bridge now supports a Connection Type selection which determines which USB pipes will be used for reading/writing
- The bridge can now execute a unix command line upon connection.
- Preferences are now remembered accross sessions
- New forced settings mechanism for distributing a locked binary with presets (see documentation)
- Quit the application when the window closes
- French translation by Michel Poulain.

Although USB to Ethernet adaptors are cheap and plentiful, Mac OS X drivers are not.
USB-to-Ethernet offers you USB to Ethernet Adaptor Drivers.
There are two basic catagories of USB-To-Ethernet adaptors:
- USB 1.1 devices that use a Pegasus driver.
- USB 2.0 devices that use a AX8817x driver (or its successor, the AX88772).
Each disk image includes an installer for Panther or Tiger, and a "src" folder containing the corresponding xCode projects.
Installation
Download and mount the appropriate driver disk image listed above, run the corresponding installer for Panther or Tiger, and then restart your system as suggested. The Installer will ask you to authenticate so it can place the corresponding driver in "/System/Library/Extensions/" with the correct file permisions to load as a kernel extension.
Next, plug-in your Ethernet adaptor with a live Ethernet cable attached. When you open the Network Preferences panel, it should inform you that a new port has appeared and ask if you want to enable it. Enable the new port and apply your network settings. Thats it.
Each driver is pre-configured to recognize a handfull of common devices. If your device does not appear to be recognized by the driver, you might have to add it to the Info.plist file, which is located inside the USBPegasusEthernet.kext or USBAx8817x.kext directory. You can use the System Profiler or USBProber tool to find the corresponding Product ID and Vendor ID.
To uninstall the driver, make sure any USB adaptors are disconnected, and then drag the corresponding driver in /System/Library/Extensions/ USBPegaususEthernet.kext or USBAx8817x.kext to the trash. You may need to authenticate that you have administrator privileges.
USB 1.1 Performance
The Pegasus chipset provides a USB 1.1 compatible implementation which could be a concern for some users. USB 1.1 runs at 1.5 Mbps (low speed) or 12 Mbps (full speed). For best performance, its important to isolate any low speed devices on a separate bus. Mice and keyboards often run at low speed.
Using the Link Rate tool in IPNetMonitorX, I measured the link rate to another device on my LAN as 6 Mbps. The built-in Ethernet on my 12" PBG4 reported 44 Mpbs. When I measured the link rate to the next hop router through my cable modem, it reported 1 mbps. It didnt make any difference whether I used Ethernet built-in or the USB-To-Ethernet adaptor. Finally, I downloaded a 2.2 MB file to compare the throughput using the Monitor tool.
Both downloads took 5 seconds, but Ethernet built-in reached a peak rate of 589 KBps versus 579 kBps. Repeating the experiment several times produced similar results. Ethernet built-in might be 1-2% faster, but performance was clearly limited by the speed of my cable modem (Your Mileage May Vary).
USB 2.0 Performance
The AX8817x chip set provides a USB 2.0 compatible implementation which runs at up to 480 Mbps (high speed), so it should be possible to keep up with 100 Mbps fast ethernet as long as there are no other slower devices on the same bus. To test this I copied a 64.8 MB music file to my PBG4 laptop connected through a LinkSys USB200M Ethernet Adaptor (en3) and compared this to the same file transfer using Built-in Ethernet (en0).
Both transfers reached 10 MBps (80-90 Mbps) and took about 10 seconds. I repeated the test in the other direction.
While the USB-To-Ethernet adaptor was slightly slower, at 80 Mbps there was little noticeable difference. Files moved quickly from one system to another via 100 Mbps fast Ethernet. Copying the same file using AirPort wireless took 50-90 seconds.
Stability
While other USB-To-Ethernet drivers are reported to be buggy, I havent encountered any stability problems to date. The adaptor turns off when the computer goes to sleep and comes back on when the computer awakes. It does not support "Wake On LAN" at this time.
Wrap Up
This USB-To-Ethernet Adaptor combination could be an attractive solution for a Mac Mini, or old iBook used as an Internet gateway or server. Im particularly fond of using old laptops as servers since they are compact, quiet, use little energy, and include their own battery backup.

AvantGo USB sync 1.2.1 works greatly and has a friendly interface.

Still waiting for AvantGo to release a conduit for Mac OS X? Is your Palm getting bored not to receive fresh internet content? Thanks to 'malsync' and 'USB-TCP Bridge' you can now sync AvantGo again!

The Automatic USB Support AppleScript is used to enable the USB Support extension included with the Mac OS USB DDK kit, by adding a "usbx" resource to the extension.